Improvement in thill-couplings



1. R. BuvlLLE.

ThiIl-Cnuplings. y No.158,399. A 'Patented1an.5,1875.

y Muur- UNITED STATES PATENT OFFICE.

JAMEs E. BUEviLLE, on BAINBEIDGE, onro, AssieNoE or ONEEALE E1s EieET To wM. E. n. Dunn, or sAME PLAoE.

IMPROVEMENT IN TH'lLL-VCOUPLINGS.

Specification forming part of Letters Patent No. 158,399, dated January 5, 1675; application filed November 30, 1874.

. ing is a specification:

My invention consists mainly in a novel manner of constructing the coupling to permit compensation for the wear of the parts.

Figure 1 represents a side view of my coupling in position; Fig. 2, a like view of the salue, with the end of one journal broken away to showv the seat or bearing; Fig. 3, a longitudinal central section of the same 5 Fig. 4, a top-plan view of the same; Fig. 5, a plan View of the thill-iron or tang.

A represents the carriage-axle; B, the clipband; C, the-clip-plate, forming the body of the coupling; and I), the thill-iron. The band, as usual, lits down over the axle, and has its ends formed into bolts, which pass down through the plate G and receive nuts g,

which hold. the plate up in place against the under side of the axle.v The plate is provided 'at its rear end with a shoulder, a, which engages behind the axle, as shown in Figs. 1, 2, and 3. The plate extends forward of the axle a considerable distance, and at its forward end it is provided on its sides .with two upright hooks or notched ears, b, having their open sides toward the rear, as shown in Figs. 1, 2, and 3. .The thill-iron or tang D is made of the proper width and size to enter between the hooks b, and is provided on its opposite sides with two solid journals, e, which rest in the hooks and secure the thilliron to the plate G, as shown. The thill-iron `is heal in place and prevented from disconnecting by a plate, E, one end of which bears against the band B, while the other bears against the thill-iron and holds the journals in the hooks. The plate E is secured in place by a vertical bolt, H, which passes down through the plate (l, as shown.

In order that compensation maybe made for the wear of the parts, the front oi the band Bis provided with an inclined projection, G, against which theA end of the plate E bears, and the said plate made of such length that when the parts are new it will not turn down to a horizontal position.

Va hole, h, through its lower end, to receive a pin or key, as shown in Figs. 1, 2, and 3.

The plate E may bear against the entire end of the thill-iron, or merely provided with arms to bear against the journals.

In order to strengthen the parts and exclude dust, Snc., the ends of the journals may be provided with enlarged heads or flanges j', as shownfr The plate E may also be provided with lips to engage over the sides of the clip-baud and prevent any lateral movement of the plate.

The coupling, constructed as described and shown, is cheap, strong, and simple. lt can be kept snug and tight in its parts, and used without noise as long as it remains in service; and it permits'a ready removal or at tachment of the thills, as it is only necessary to remove the plate E and then hook or unhook the thill-iron. j

It will be seen that by providing the plate C with the shoulder a., the draft or strain is brought directly upon the axle instead ot' upon the clip-band, as usual, and that, colisequently, the clip-baud is relieved of much of the usual strain, so that there is less danger of its being broken than usual.'

What I claim. as my invention is- The thill-coupling consisting of the body A, provided with the hooks b, the clip-band B, provided with the inclined face, the T-headed thill-iron D, the inclined bar E, hearing at one end directly against the thill-iron, and at the opposite end against the inclined face ot' the band, and the bolt H, all combined as set forth.

JAMEs E.V BuEviLLE.

Witnesses HENRY C. TULLEYs, SAMUEL HIGGINS. 

